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Endorsed by



Trusted Traders

Alderson Building Company Ltd

Profile thumb logo2019


16 Reviews

Opening Hours
Today - 08:00–17:00
  • Monday 08:00–17:00
  • Tuesday 08:00–17:00
  • Wednesday 08:00–17:00
  • Thursday 08:00–17:00
  • Friday 08:00–17:00
  • Saturday - Closed
  • Sunday - Closed

What is a Which? Trusted Traders Hertfordshire Trading Standards Approved Endorsement?

Which? Trusted Traders has partnered with Hertfordshire Trading Standards to create a Hertfordshire Trading Standards Approved endorsement. In addition to our standard trading standards assessment, this trader has had a DBS check and is subject to a Trading Standards intelligence check


Alderson Building Company is a Hertfordshire based, domestic building business. Covering all construction projects including house extensions and loft conversions, home refurbishments and landscaping projects.

We are a long established, family run business with an excellent reputation in the industry. We feel very proud of our positive customer reviews and hope you enjoy reading them.

What we do

  • Builders

    • Extensions
    • Garage conversions
    • Building services
    • Loft conversions
    • Plastering
  • Kitchen fitters

    • Kitchen installation
  • Fencing

  • Patios and driveways

  • Bathroom fitters

  • More Services

    • refurbishment

Customer reviews

Why you can trust these reviews

All reviews are verified as being genuine and a true customer of this trader.

How can we be so sure?

100% of the reviews we publish have been through our stringent moderation process.

16 reviews
Customer Service
Sort by
Trusted builders who do a quality job
Customer Service
Over the last 5 years Ray, his two sons, and the handful of trusted partners they work with for specialist jobs, have completed a full renovation of our house- extension, demolition, kitchen, bathrooms, plastering, tiling, electrics, joinery...there isn’t much they done! Completely trustworthy, they get the job done consulting you every step of the way. The quality of their work is second to none and they work in an efficient and considerate way- making living through the work as comfortable as possible. I wouldn’t use anyone else, and as result of the work on our house I know they have had enquiries from several neighbours
Customer in Hertfordshire Posted on 21/11/2018 , work completed 01/04/2018
Kitchen extension and garage conversion
Customer Service
From receiving the initial competitive quote to the competition of the work, Ray, Roy and Liam have been polite and professional. Throughout the job, they arrived on time and managed the other trades well, ensuring that the work progressed as planned. When unexpected jobs cropped up, Ray discussed the necessary work and agreed a price before proceeding, written quotes were always provided for my records. They kept the area as tidy and ensured not to inconvenience us. The work was completed to a high standard. My neighbours have been pleased with their approach, with one contacting them to quote for work. I would not hesitate to use ABC again for any future work and recommend them wholeheartedly.
Gareth Posted on 16/09/2018 , work completed 16/09/2018
Extension to St Barnabas Church Hemel Hempstead
Customer Service
We contracted Alderson Building Company for an extension to our church, I would highly recommend them anyone. They are a credit to the industry, they finished ahead of schedule and to an extremely high standard. When submitting their quote they did'nt hide any costs. Even when we did have additional costs they worked with us to get the best possible result. Helpful, polite, clean and tidy and a joy to have on the premises. The other tradesmen they brought to sight were top class.
Robw48 Posted on 04/05/2018 , work completed 04/05/2018
Lovely job lads
Customer Service
Ray and the lads started promptly on the arranged day and from day 1 things started happening. Very organised and methodical. Lovely job, finished on time. They did extra work which wasn't on the plans with no problem. Thanks to Ray, Roy, Liam and their trusted tradesman.
Neil, Hertfordshire Posted on 01/10/2017 , work completed 01/10/2017
A building company you can TRUST to come and carry out a Kitchen & Toilet Refurbishment and finish the job as requested and on time.
Customer Service
Great team – would definitely consider ABC for other projects. I found Ray and his boys very professional, arriving on time every day and providing a high standard of work. The whole job was very well organised with skip in situ from day one and the work area kept clean and tidy throughout the entire job. Very happy with the end result and would highly recommend. Noel Nugent 1/6/2017
Noel Nugent Posted on 07/06/2017 , work completed 07/06/2017
Very reliable, helpful and above all good quality
Customer Service
We have used ABC builders for several building jobs, including a rear extension, new guttering and a garden wall. Most recently they have re-pointed our chimney. They always arrive on time, are friendly, but not demanding and use good quality products. They clear up every day without fail. We would certainly recommend them to anyone.
Hilary P Posted on 22/09/2016 , work completed 22/09/2016
Customer Service
I found Ray to be very considerate, friendly neat and tidy. He worked on my patio and velux roof windows.
Christina, St Albans Posted on 01/04/2015 , work completed 01/04/2015